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yingeyanjiu新蟲 (初入文壇)
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[求助]
結(jié)構(gòu)優(yōu)化 已有1人參與
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請問各位大神,你們對晶體硅做弛豫的時(shí)候,incar參數(shù)怎么設(shè)置啊。還有就是我用VASP算完以后為什么表面與弛豫完的硅實(shí)際表面不一樣。 這是我的incar參數(shù)設(shè)置: SYSTEM =Si Startparameter for this Run: NWRITE = 1; LPETIM=F write-flag & time ISTART = 0 job : 0-new 1-cont 2-samecu LWAVE = .FALSE. LCHARG = .FALSE. Electronic Relaxation 1 # NELM = 2000 NELMIN = 5 EDIFFG = .1E-3 EDIFF = .1E-3 PREC = Accurate Ionic Relaxation NSW = 1000 for static cal/. NBLOCK = 1 ; KBLOCK = 5 inner block; outer block IBRION = 2 ionic relax: 0-MD 1-quasi-New 2-CG POTIM = 0.5 LCORR = T Harris-correction to forces ENCUT = 300 ISIF = 2 DOS related values: # ENAUG = 400.0 ISMEAR = 0 SIGMA = 0.10 LDOS # RWIGS = 1.30 1.335 1.126 # NPAR = 1 # work function # LVTOT = .TURE. # LDIPOL = .TURE. # IDIPOL = 3 Electronic Relaxation 2 ALGO = FAST IALGO = 48 algorithm LDIAG = T sub-space diagonalisation LREAL = A ROPT = -2E-4 -2E-4 -2E-4 # AMIX = 0.3 # BMIX = 0.0001 # AMIX_MAG = 0.8 # BMIX_MAG = 0.0001 # MAXMIX = 40 # NGX = 60 # NGY = 60 # NGZ = 60 弛豫完的表面結(jié)構(gòu)和剛開始的沒什么不一樣。 |
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